In windows 7 the registry entries for context menus might mess up with the look of the context menu. The context menu or the right click menu will although work correctly, but the cosmetic look of the right-click menu will turn into classic context menu.
In this article I will share a generic method to fix this problem.
This problem occurs because of a particular way of registry entries into Windows Registry for the context menu handling. One such problem is there with Notepad++ earlier versions. So if you have installed Notepad++ or some other software which has not been released for Windows 7, there might be this issue with the context menu look.
Note that only those softwares which modify the context menu entries in Windows registry will do this kind of problem. So keep a watch when you install some software which is not released for Windows 7.
On reading through some forums and other websites, I reached this article by Winhelponline who have created a registry fix for the Notepad++ context Menu problem. They are providing a .reg file which will remove the existing entry and create a new entry in another way which will solve this issue.
As a general thumb-rule, If you face a problem after Installing a particular software and you can see its entry in the context menu/right click menu, you can remove the entry Manually at this location in the Registry:
HKEY_CLASSES_ROOT \ * \ shellex \ ContextMenuHandlers \ <Applicarion Name>
For notepad++ problem, you can simply solve the issue using the below files and executing the .reg files.